Open Source iPhone Apps List – Real App Store Code Examples!

open source iphone apps

Welcome to the sixth iteration of the open source iPhone and iPad apps list.  A For those that have seen similar listings on other sites using the exact wordings, and links below welcome to the source for the original list.  Also included are some open source iPad apps, and universal open source iOS apps.

It can be tough to learn how to develop, especially when it comes to finding complete examples.  That’s why I put this list together.  Each of these open source iPhone apps is not just open source, but has been in the app store, and all but one are in there right now.  So if you’re looking for an example of some real apps here they are.

Last Update: 1/9/2012

Before going on to the apps, please share these open source iOS apps with your Twitter followers by clicking here.

If you are looking to add a list to your site rather than simply copy this list why not write a post about your favorite apps from this list, and link back to this page?  I’ll even give you a link back in the form of a trackback.

The Open Source iPhone Apps List

Here is the open source iphone app list in alphabetical order:

1. 2012 OlympicsApp displaying timetable for 2012 Olympic events. (iTunes link) (source code)

2. ABC 123Sequence memorization game. Utilizes Cocos2D. (iTunes link) (source code)

3. AntiMapLog - An app for recording your own data (location, time, etc.) over a period of time. (iTunes link) (source code)

4. Barcode Scanner - An example app that is part of the Zxing barcode reader project. (iTunes link) (source code)

5. Battle For WesnothFantasy themed turn based tactical RPG game available on several platforms and now the iPhone/iPad. (iTunes link) (source code)

6. Bubbsy - Cocos2D based game using Box2D fixes and Tiled level creation. (iTunes link) (source code)

7. Camlingual - App that can read and translate signs using sophisticated OCR. (iTunes link) (source code)

8. Climbers2D finger dragging climbing game created with Cocos2D. (iTunes link) (source code)

9. ColloquyConversion of the most popular Mac IRC client to the iPhone. (iTunes link) (source code)

10. ComicFlowBeautiful comic book reader for iPad. (iTunes link) (source code)

11. Countitout - A generic counting app. (iTunes link) (source code)

12. Diceshaker - Dice rolling simulator designed for role-playing game enthusiasts. (iTunes link) (source code)

13. Dollar Bets - App for recording personal bets placed with your friends. (iTunes link) (source code)

14. Doom Classic - Classic 3D first person shooter. (iTunes link) (source code)

15. Dozuki Interactive repair manual app from the guys at iFixit. (iTunes link) (source code)

16. Ecological Footprint Calculate, display, and record your ecological footprint. (iTunes link) (source code)

17. Edgy App for demonstrating the basics of OpenCV and the iPhone. (iTunes link) (source code)

18. Edhita iPad text editor with file transfer support and browser previewing. (iTunes link) (source code)

19. Fosdem- Calendar app for the Fosdem open source conference. (source code)

20. FreshbooksOpen Source iPhone app that enables usage of Freshbooks web invoicing software from your iPhone. (iTunes link) (source code)

21. Frotz - Open Source interactive fiction app with support for the Z-machine format. (iTunes link) (source code)

22. Gas Guide - Guides for helping medical students study built from the Gas guide source. (iTunes link) (source code)

23. GorillasClassic Worms/iShoot turn based shooter type game converted to iPhone from basic. Utilizes Cocos2D. (iTunes link) (source code).

24. iLabyrinth - Puzzle game written in Cocos2D requiring you to navigate through increasingly difficult labyrinths. (iTunes link) (source code)

25. iStrobeTurns the iPhone 4 flash into a highly configurable strobe light. (iTunes link) (source code)

26. Last.fmSoftware that enables usage of the Last.fm platform for personal radio stations. (iTunes link) (source code)

27. Mobilesynth - A monophonic synthesizer designed for live performance. (iTunes link) (source code)

28. MoleculesAllows you to view 3D models of molecules and manipulate them through touch. (iTunes link) (source code)

29. MoverAllows you to transfer stuff from one iPhone to another by “flicking” it to the other device. (iTunes link) (source code)

30. Mugician - iPad music synthesis app being used by various musicians in real life gigs. (iTunes link) (source code)

31. Natsulion - A basic twitter client converted from mac. (iTunes link) (source code)

32. NevoChessA Xiangqi game. (iTunes link) (source code)

33. News:yc - A hacker news client. (iTunes link) (source code)

34. NowPlayingAllows you to check local theater listings, and check rotten tomato ratings. (iTunes link) (source code)

35. PacklogBackpack journal client. (iTunes link) (source code)

36. PlainNoteSimple Open Source Notepad. (iTunes link) (source code)

37. PocketFlixFind movies, and manage your Netflix information. (iTunes link) (source code)

38. Prey - Anti-theft tracker featuring on-demand and push notification activation. (iTunes link) (source code)

39. Puff PuffBeautiful underwater 2D game utilizing Cocos2D and Openfeint featuring unique physics based gameplay. (iTunes link) (source code)

40. reMailE-mail client featuring ultra-fast search. Removed from app store, but source made available. (source code)

41. RobotFindsKittenPort of a very silly “classic” ASCII game. (iTunes link) (source code)

42. RPI Shuttle Tracker - App for tracking bus positions around the RPI campus. (iTunes link) (source code)

43. Sci-15 HPCalcCalculator app based on classic scientific HP-Calculator. (itunes link) (source code)

44. SpaceBubbleSpace game featuring core graphics, and accelerometer usage. (itunes link) (source code)

45. Star3MapAugmented reality star and planet charting application. (itunes link) (source code)

46. Stockfish ChessA chess game featuring extremely effective AI . (itunes link) (source code)

47. Sudoku Resolv  - Sudoku solving app using computer vision. (itunes link) (source code)

48. Task CoachPersonal to-do list and task manager. (itunes link) (source code)

49. Tilt MonsteriPhone game written with the Corona SDK that reached top 25 in the app store. (itunes link) (source code)

50. Travel Advice UK - App featuring worldwide travel advice provided by the UK Governemnt. (itunes link) (source code)

51. Tux RideriPhone port of the extremely popular, and beautiful 3D Tux Racer game. (itunes link) (source code)

52. TweejumpPlatform jumping game inspired by Icy Tower. Utilizes Cocos2D. (itunes link) (source code)

53. TweeteeEnhanced version of the Natsulion Twitter Client. (itunes link) (source code)

54. TweeteroBasic twitter client with image uploading. (itunes link) (source code)

55. ViralFireUnique game where you are a dodging blood cell. (itunes link) (source code)

56. WikihowA reader app for the popular how to wiki site. (itunes link) (source code)

57. Wikipedia – Official Wikipedia app for iOS devices. (itunes link) (source code)

58. Wolfenstein 3D Classic Platinum – If you haven’t heard of Wolfenstein post below so we can say a prayer for you. (itunes link) (source code)

59. WordPressClient for managing WordPress blogs. Also has an iPad version. (itunes link) (source code)

60. XpilotSimple massively multiplayer arcade shooter from the early days of the internet. (itunes link) (source code)

61. YourRightsPocket database containing a summary of your legal rights. (itunes link) (source code)

62. ZBarA barcode reader open source iphone app. (itunes link) (source code)

Check them out if you are working on something similar or think they might have a feature you could use there’s no reason to re-invent the wheel.  Always make sure you understand the licenses as many of these open source iPhone apps are GPL and require that you open source your app.

Please Share And Comment

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Know Any Other Open Source iPhone Apps?

If you’ve found or have released an app that you would like added to the open source iphone apps list then please mention it in the comments.

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  • Omar Guzmán

    Wow, Great Site… Thanks for sharing…

  • govind

    sweet dreams, Jungle Trouble, (from just for Girls) available on google code
    open source game

    Nice Graphics and good game play
    uses cocos2d and Box2d

  • John

    Thanks for the tips, will watch for once these games are completed. I only place completed apps that are (or at least were) available in the app store.

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  • http://twitter.com/inkul/status/39629148875915264/ ???, Lee Inkul (@inkul)

    Open Source iPhone Apps List – Real App Store Code Examples! http://t.co/YFgKSEA (via @maniacdev) http://t.co/rsHnxYI via @maniacdev #fb

  • http://twitter.com/bharath2020/status/41336362707714048/ bharath2020 (@bharath2020)

    “@icode2020: Open Source iPhone Apps List – Real App Store Code Examples! http://t.co/cy8MP7h (via @maniacdev) http://t.co/Ww8u7q1

  • http://nathan.stitt.org/ Nathan Stitt

    One more for your list: Remindly

    I was a huge fan of a palm program called Diddlebug on my old Treo, and found it was the only app I missed when I moved to the iPhone. It allowed you to easily create a scribble a short note on the screen,and then quickly enter an alarm time. With it, I was able to easily remember silly little things like ‘call joe back’ or ‘pick up milk’

    Accordingly, as soon as I got a few spare days, I wrote a similar app called Remindly and have now open-sourced it under the GPL3. You can find it at: http://iogee.com/remindly

    I’m hoping the source is of use to others, since it really seems like there’s a scarcity of iPhone/iPad open source projects.

  • Sudhanshu

    It’s great!!! Thanx

  • http://jsway.se Björn

    Orbium, http://jsway.se

    Available on the iTunes app store here:
    http://itunes.apple.com/us/app/orbium/id376402382?mt=8

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  • http://github.com/iosdeveloper/MyTube iosdeveloper

    I have a new open-soruce project up on GitHub called MyTube.

    It’s a YouTube downloader for iOS.

    I have submitted it for the App Store but Apple has rejected it because it is not in compliance with the YouTube TOS so I decided to make it open-source under the GPL license.

    I also included all images I have used.

    I would be more than happy if you take a look, tell me what you think and add it to the list above:

    http://github.com/iosdeveloper/MyTube

    Thanks and regards, iosdeveloper

  • AA

    Thank you

  • Ash

    I am not a programmer, however have the SDK for iOS. All I need is to create an app where when I touch the icon, it takes me to a website.

    Thanks.

  • John

    alright?

  • http://www.emersoncarvalho.com Emerson Broga

    thanks!! It’s very useful for my studies! =)

  • http://thunderkeybolt.com Frahaan Hussain

    You can put my app up called LED Strobe Flashlight which is for free on the app store
    https://github.com/Frahaan/LED-Strobe-Flashlight-iPhone-4-Source-Code

  • http://thunderkeybolt.com Frahaan Hussain

    You can put up my app called 2012 Olympics which is a paid application on the app store.

    https://github.com/Frahaan/2012-Olympics-iOS–iPad-and-iPhone–source-code

  • http://www.pol-online.net Pol

    ComicFlow is also the first (and only?) open-source comic reader for iPad: the entire source code and graphic assets are available for anyone to look at or contribute.

    http://code.google.com/p/comicflow/

  • John

    Nothing on your github page yet.

  • http://thunderkeybolt.com Frahaan Hussain

    @john if you talking about me, then it is on there you need to click the downloads button to download the zip file, check out the final products as well

    cheers

  • http://thunderkeybolt.com Frahaan Hussain

    @john
    I have updated the github repositories so they have all the files to download individually

  • http://haqu.net haqu

    I see that Tweejump is already in this list. Thanks. I have one more open sourced game for iPad – Climbers:
    https://github.com/haqu/climbers.

    It is available on the App Store for free:
    http://itunes.apple.com/us/app/climbers/id434336581?mt=8&ls=1

  • http://code.google.com/p/iphonefrotz/ Craig Smith

    Hi there. The entry for Frotz has an incorrect description; it contains the duplicated description of the previous entry. Can you please fix it?
    It should say something like:

    Frotz lets you play free works of Interactive Fiction (a.k.a. text adventure games) written in the Z-machine or glulx formats.

  • John

    Hi Craig! Thanks for pointing that out, I have had some issues since the latest update of WordPress with the editor, fixing.

  • sdjzu_ddk

    Great site!!!! Wonderful

  • thein tun aung

    Thanks a lot.
    all are so useful.

  • http://maniacdev.com maniacdev

    You’re welcome.

  • http://maniacdev.com maniacdev

    Thanks!!!!

  • http://www.facebook.com/people/Yaniv-Presler/100002923743345 Yaniv Presler

    Hi All.

    We created a
    great platform for games and want to try our platform on iphone games. We don’t
    want to use an open source code without get the permission from the owner.

    Please sign in to
    PlayerDuel website so we will contact you.

    Thanks

  • Iain Munro

    Hi

    For some reason I cannot see in the above list the new Apps you added.

    Iain

  • http://maniacdev.com maniacdev

    Hi Iain – sorry about that it appears there is a database issue and I am trying to remedy things. Interestingly enough this is the only post I can find with the issue.

    The page was updated for me last night until I logged out then – poof.

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  • http://www.facebook.com/ceacare Ceacare Arun

    Can anyone as tiger goat or checker type game app please share with me

  • http://twitter.com/icode2020 bharath2020

    Hi ManiacDev,

    First of all, I appreciate for creating such a HUGE Knowledge base.. It definitely is survival guide for us..

    I would just like to let know about the typo in open source apps list.

    Description for  Edgy (#16) is incorrect.

    Thanks Again,
    Bharath 

  • http://twitter.com/desaiguddu Arpan Desai

    Newsyc or Hacker news is also open source..  Otherwise its 4.99 USD on app store.

  • http://www.facebook.com/people/Anil-Kumar-Upadhyay/1488127644 Anil Kumar Upadhyay

    good resource and valuable  sources

  • http://twitter.com/sonpham1102 Pham Lam Khai

    I try to test your code on my ipod touch but when download finish don’t have see in portal! How and why don’t see result?
    Thank!

  • John

    You’ll need to be more specific as to which app you’re having trouble with. If the example is on Github you can typically use the Download button, but you may need to use Git.

  • http://www.facebook.com/divyalove7 Divya Smith

    thnx

  • jasper blues

    Great list! Any chance you could include the license in the summary? Maybe it will help other app developers that are planning to open source to choose a license.

  • http://maniacdev.com maniacdev

    That’s a good idea, along with the screenshots suggestion – I will look to script something up to tie in iTunes for screenshots, and type in the licensing info.

    Adding an update today with some new apps, but I’ll keep that on tab for the next update.

  • angad mutha

    Thanks a Lot maniacdev. Great List.
    I am searching for a good open source chat client which uses google , msn , yahoo API’s . something like IM+ or ebuddy . If u do find one , pls include it in the list.
    thanks once again

  • http://pulse.yahoo.com/_3HD36JBJTQFP6UCTWZ4BZ5MNGU Sven

    Does anyone know a good open source example for Twitter Search? I just need an open source example I can import into Xcode.  Also, if you know of a good open source example for Weather lookup that I can import into Xcode too. Thank you for your help.

  • Anonymous

    Thanks for this great list! Good job!

  • Peter A. Berg

    Awesome, thank you